Stanley Rebecca M, Maher Carol, Dollman James
University of Wollongong, Early Start Research Institute, School of Education, Northfields Ave, Wollongong, 2522, New South Wales, Australia.
University of South Australia, Alliance for Research in Exercise, Nutrition and Activity, School of Health Sciences, GPO Box 2471, Adelaide, 5001, South Australia, Australia.
BMC Public Health. 2015 May 1;15:445. doi: 10.1186/s12889-015-1765-7.
The purpose of this study was to identify the independent association of frequency of walking trips between home and school with daily physical activity in a sample of school-aged children.
Participants were 109 children (mean age = 12.05 years [± 0.71]) attending nine primary schools in Adelaide, South Australia. Physical activity was derived from accelerometers with total counts as the outcome variable. Transport patterns were self-reported for each of the previous five school days. Walking trips were summed for each day and across the school week. The relationship between the number of active transport journeys and individual school day and school week physical activity was modelled separately in boys and girls using multiple linear regression.
Frequency of walking was positively associated with school day and school week accelerometer counts in boys, accounting for 6% and 12% of the explained variance in total counts, respectively. There were no significant associations among girls.
Despite sex-specific differences in associations between active transport to school and total physical activity, active transport is likely to have important ancillary benefits for development of independence and physical activity habits, and should continue to be promoted.
本研究旨在确定在一组学龄儿童样本中，往返于家和学校之间的步行频次与日常身体活动之间的独立关联。
研究对象为南澳大利亚阿德莱德市9所小学的109名儿童（平均年龄 = 12.05岁[± 0.71]）。身体活动通过加速度计测量得出，以总计数作为结果变量。通过自我报告获取前五个上学日每一天的交通方式。计算每个上学日以及整个上学周的步行次数。使用多元线性回归分别对男孩和女孩的主动出行次数与单个上学日及上学周身体活动之间的关系进行建模。
在男孩中，步行频次与上学日及上学周加速度计计数呈正相关，分别占总计数解释方差的6%和12%。在女孩中未发现显著关联。
尽管步行上学与总体身体活动之间的关联存在性别差异，但主动出行可能对独立性发展和身体活动习惯培养具有重要的附带益处，应继续加以推广。
